230845 has 8 divisors (see below), whose sum is σ = 279864. Its totient is φ = 182784.

The previous prime is 230833. The next prime is 230849. The reversal of 230845 is 548032.

It can be written as a sum of positive squares in 4 ways, for example, as 13689 + 217156 = 117^2 + 466^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 230845 - 2¹¹ = 228797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 517 + ... + 853.

It is an arithmetic number, because the mean of its divisors is an integer number (34983).

2²³⁰⁸⁴⁵ is an apocalyptic number.

It is an amenable number.

230845 is a deficient number, since it is larger than the sum of its proper divisors (49019).

230845 is a wasteful number, since it uses less digits than its factorization.

230845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 230845 is about 480.4633180587. The cubic root of 230845 is about 61.3441976921.

Adding to 230845 its reverse (548032), we get a palindrome (778877).

The spelling of 230845 in words is "two hundred thirty thousand, eight hundred forty-five".